Which of These Is True of Planetary Nebulae

question 62

Multiple Choice

Which of these is true of planetary nebulae?

• A) They are the material which causes the eclipses in eclipsing binary systems.
• B) They are ejected envelopes surrounding a highly evolved low- mass star.
• C) They are expelled by the most massive stars in their final stages before supernova.
• D) They are rings of material around protostars that will accrete into planets in time.
• E) They are the envelopes that form when blue stragglers merge.

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Definitions:

Socioeconomic Status

A measure of an individual's or family's economic and social position in relation to others, based on income, education, and occupation.

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The tendency to overestimate the influence of internal factors in determining behavior while underestimating situational factors.

Groupthink

A psychological phenomenon that occurs within a group of people, where the desire for harmony or conformity results in an irrational or dysfunctional decision-making outcome.

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